SurvMax

Powerful calculator programs for land surveyors.

Built for the Texas TI-84 Plus. Tested in the field.

Free closure calculator

Calculate the bearing & distance of a shape’s missing side. Can also perform a double-missing-distance.

CLOSURE

Closure calculator v2

New, improved version of the original. Calculates the bearing & distance of a shape’s missing side. Can also perform a double-missing-distance. Lots of time-saving shortcuts.

CLOSURE2

Adding & subtracting angles

With easy conversion of degrees, minutes, and seconds (D.MMSS).

DMSCALC

Easy feet & inches conversion

Easily convert feet & inches into metres, and auto-calculate the sum of several lengths.

FICALC

Arcs

Calculate arc length, chord length, radius, area, sagitta/bulge, and convert between them.

SURVARC

Level reduction

Quickly and easily “reduce” and convert instrument-relative levels into final levels.

REDLEVEL

Bearing rotation

Rotate one or more bearings by a specific amount, using degrees, minutes and seconds.

DMSROTAT

Area of a shape

Calculate the area of a shape that's defined by bearings & distances.

POLYAREA

Chains & links to metres

Easily convert chains & links into metres, and auto-calculate the sum of several lengths.

LINKS2M

Video Demos

More downloads and guides launching early 2025.